Power door locks- rivet size?

Anyone know where to find a rivet gun that can support that size rivet? I bought the rivets from 50resto that hold the acuators but I have been at a loss for finding a gun/handtool that can install that rivet. I don't even know what size they are or how to measure them?

Also if you have done these before what is the hardest thing to do?.. Is there anything I should look out for / prepare for?

I'm kinda desperate at getting these in soon since my door locks are frozen in the unlock position right now. I also have to leave my car in a public parking lot far, far away from the rest of the world for 6-7 hours a day so its kind of a big deal to me. Help!

I got a pair of stock ones for cheap brand new in the packages so i'm going to go with those... It appears from your walk thru that if I don't drill out the rivet and leave the mounting bracket in there then I should be able to just pop the acuator in to the original mounting bracket from the bottom... So eliminating the need to mess with the rivet? Or am I reading this wrong?

What a pain the ass it was to get that frozen one out... but I got it done and it works like a charm

Thanks for the help.

Now if it would only stop raining I could do my other door too but atleast that one still locks and works by power when it wants to